The SU-16C is not a replacement for Kel-Tec's original SU-16 but a complement for customers that put a premium on ruggedness and adaptability. The "Charlie" model retains most features of the original SU-16, such as integrated bipod, a picatinny rail, and AR-15/M16 magazine compatibility. The SU-16C has a true folding stock and can be fired with the stock folded. The front sight is integrated into the gas block and uses an AR-style front sight post for elevation adjustments. A reciprocating dust cover and a case deflecting operating handle are also integrated into the rifle. The medium weight barrel is 16" long and is threaded 1/2x28 TPI at the muzzle. A chrome-lined bore and chamber are now standard.